Search for keV-scale sterile neutrinos with the first KATRIN data
In this work we present a keV-scale sterile-neutrino search with a low-tritium-activity data set of the KATRIN experiment, acquired in a commissioning run in 2018. KATRIN performs a spectroscopic measurement of the tritium β-decay spectrum with the main goal of directly determining the effective ele...
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| Main Authors: | , |
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| Format: | Article (Journal) |
| Language: | English |
| Published: |
29 August 2023
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| In: |
The European physical journal. C, Particles and fields
Year: 2023, Volume: 83, Issue: 8, Pages: 1-12 |
| ISSN: | 1434-6052 |
| DOI: | 10.1140/epjc/s10052-023-11818-y |
| Online Access: | Verlag, lizenzpflichtig, Volltext: https://doi.org/10.1140/epjc/s10052-023-11818-y
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| Author Notes: | M. Aker, D. Batzler, A. Beglarian, J. Behrens, A. Berlev, U. Besserer, B. Bieringer, F. Block, S. Bobien, B. Bornschein, L. Bornschein, M. Böttcher, T. Brunst, T.S. Caldwell, S. Chilingaryan, W. Choi, K. Debowski, M. Descher, D. Díaz Barrero, P.J. Doe, O. Dragoun, G. Drexlin, F. Edzards, K. Eitel, E. Ellinger, R. Engel, S. Enomoto, A. Felden, J.A. Formaggio, F.M. Fränkle, G.B. Franklin, F. Friedel, A. Fulst, K. Gauda, A.S. Gavin, W. Gil, F. Glück, R. Grössle, R. Gumbsheimer, V. Hannen, N. Haußmann, K. Helbing, S. Hickford, R. Hiller, D. Hillesheimer, D. Hinz, T. Höhn, T. Houdy, A. Huber, A. Jansen, C. Karl, J. Kellerer, M. Kleifges, M. Klein, C. Köhler, L. Köllenberger, A. Kopmann, M. Korzeczek, A. Kovalík, B. Krasch, H. Krause, L. La Cascio, T. Lasserre, T.L. Le, O. Lebeda, B. Lehnert, A. Lokhov, M. Machatschek, E. Malcherek, M. Mark, A. Marsteller, E.L. Martin, C. Melzer, S. Mertens, J. Mostafa, K. Müller, H. Neumann, S. Niemes, P. Oelpmann, D.S. Parno, A.W. P. Poon, J.M.L. Poyato, F. Priester, J. Ráliš, S. Ramachandran, R.G.H. Robertson, W. Rodejohann, C. Rodenbeck, M. Röllig, C. Röttele, M. Ryšavý, R. Sack, A. Saenz, R. Salomon, P. Schäfer, L. Schimpf, M. Schlösser, K. Schlösser, L. Schlüter, S. Schneidewind, M. Schrank, A. Schwemmer, M. Šefǧík, V. Sibille, D. Siegmann, M. Slezák, F. Spanier, M. Steidl, M. Sturm, H.H. Telle, L.A. Thorne, T. Thümmler, N. Titov, I. Tkachev, K. Urban, K. Valerius, D. Vénos, A. P. Vizcaya Hernández, C. Weinheimer, S. Welte, J. Wendel, M. Wetter, C. Wiesinger, J.F. Wilkerson, J. Wolf, S. Wüstling, J. Wydra, W. Xu, S. Zadoroghny, G. Zeller |
| Summary: | In this work we present a keV-scale sterile-neutrino search with a low-tritium-activity data set of the KATRIN experiment, acquired in a commissioning run in 2018. KATRIN performs a spectroscopic measurement of the tritium β-decay spectrum with the main goal of directly determining the effective electron anti-neutrino mass. During this commissioning phase a lower tritium activity facilitated the measurement of a wider part of the tritium spectrum and thus the search for sterile neutrinos with a mass of up to 1.6 ke V. We do not find a signal and set an exclusion limit on the sterile-to-active mixing amplitude of sin2 0 < 5 x 10 -4 (95% C.L.) at a mass of 0.3 keV. This result improves current laboratory-based bounds in the sterile-neutrino mass range between 0.1 and 1.0 keV. |
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| Item Description: | Online veröffentlicht: 29. August 2023 Gesehen am 29.01.2024 |
| Physical Description: | Online Resource |
| ISSN: | 1434-6052 |
| DOI: | 10.1140/epjc/s10052-023-11818-y |